Altsasu
Altsasu is a small town in Navarre, Spain, 517 m above sea level. It has a population of about 7,717 (2025). The climate is classified as oceanic (Köppen Cfb), with rain spread through the year and no real dry season.
Best: Jun–Jul · Sep. Warmth, sunshine and dry days, month by month.
Altsasu at a glance
The months with the highest weather score
Average high in August
Average low in January
129 mm of rain
49 mm of rain
4 of them World Heritage
Weather in Altsasu
Now and the next ten days. The 14 and 30-day outlooks are one click away.
Cloudy · wind 10 km/h · humidity 67%
When to go to Altsasu
Each month's weather score (warmth, sun, dry days) with its temperatures and rain.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Score | 17 | 21 | 39 | 48 | 61 | 70 | 72 | 68 | 71 | 65 | 29 | 18 |
| High | 9° | 10° | 14° | 16° | 20° | 23° | 25° | 26° | 23° | 18° | 12° | 9° |
| Low | 2° | 2° | 4° | 5° | 9° | 11° | 13° | 14° | 11° | 9° | 5° | 2° |
| Rain (mm) | 129 | 104 | 108 | 127 | 105 | 67 | 49 | 54 | 69 | 114 | 146 | 147 |
| Wet days | 15 | 13 | 13 | 14 | 14 | 11 | 10 | 10 | 11 | 12 | 15 | 13 |
What's on in Altsasu
Concerts, football matches, the public holidays ahead and the town's festivals through the year.
Altsasu's festivals through the year
Monuments and museums in Altsasu
Outdoors around Altsasu
Hiking routes from the town, and what there is to do within 15 km: huts, viewpoints, climbing, camping, ski areas and dive sites.
Nature around Altsasu
Wildlife in October
The birds and mammals of Spain seen most this month, compared with the rest of their year.
The sky over Altsasu
Earthquakes around Altsasu
The last 30 days within 300 km, and the record since 1950.
Strongest nearby since 1950
Towns and villages around Altsasu
Each with its own page: weather, climate and the best time to visit.
Altsasu from above
Postal code
Getting to Altsasu
Places near Altsasu
Places with a climate like Altsasu
Matched month by month on temperature, rain and sunshine.
